Product News
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The LSAW steel pipe
The damaged form of LSAW steel pipe surface LSAW steel pipe is formed by the surface layer of very thin and strong stability of fine chromium-rich oxide film (protective film), to prevent the continued infiltration of oxygen atoms, to oxidation, and access to anti-corrosion ability. If there is s...Read more -
ERW steel pipe equipment and city gas pipeline network construction
ERW steel pipe equipment ERW steel pipe equipment is mainly following types: Equipment series of cold-formed steel: cold-formed steel welded pipe equipment, cold-formed steel equipment, cold-formed steel, cold-formed steel machinery, steel equipment, unit of cold-formed steel, cold-formed steel e...Read more -
Drill pipe
Drill pipe is used for core drilling for geological department, which is a kind of hollow cross section, no seams around the long bar of steel. Steel hollow sections with a large pipe for transporting fluids, such as the transportation of oil, gas, coal gas, water and some solid materials, pipes,...Read more -
Galvanized pipe corrosion principle
Galvanized steel pipe is is state of molten metal zinc and iron substrate reaction of alloy layer, so that the substrate and the coating combination of both. On the use of technology in galvanized, Hot dip galvanized firstly do the pickling, in order to remove the steel surface of iron oxide, aft...Read more -
Difference between hot rolled and cold formed steel
Hot rolled steel Hot-rolled is with continuous casting slab or blooming slab as raw material, after reheating furnace heating, high pressure water descaling into roughing mill, roughing material by the cutting head, tail, and then enter the finishing mill, the implementation of a computer-control...Read more -
Black ERW steel pipe
Black ERW steel pipe ERW steel pipe with bevelled ends & plastic caps Hunan Great Steel Pipe Co.,Ltd can provide you with Electric Resistance Welded (ERW) Pipe suitable for your project needs. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tub...Read more